SUBSEQUENT EVENTS - Narrative (Details)	Jul. 17, 2015 USD ($) case acquisition	Jul. 02, 2015 $ / shares	Jul. 02, 2014 USD ($)	Jun. 15, 2011 $ / shares
Subsequent Event
Subsequent Event [Line Items]
Distribution of shares, percent		100.00%
Shares of Integra required for share of Sea Spine		3
Number of businesses acquired | acquisition	2
Consideration for acquisition	$ 312,000,000
TEI Biosciences Inc. | Subsequent Event
Subsequent Event [Line Items]
Consideration for acquisition	211,000,000
TEI Medical Inc. | Subsequent Event
Subsequent Event [Line Items]
Consideration for acquisition	$ 101,000,000
TEI Biosciences Inc and TEI Medical Inc. | Subsequent Event
Subsequent Event [Line Items]
Number of active cases | case	45
Indemnification policy in place	$ 3,000,000.0
2016 Convertible Senior Notes
Subsequent Event [Line Items]
Initial conversion price, per share | $ / shares				$ 57.44
Common stock based on initial conversion rate ratio (in shares)				17.4092
Strike price of the call transaction (in dollars per share) | $ / shares				$ 57.44
Strike price of warrant transactions (in dollars per share) | $ / shares				$ 70.05
2016 Convertible Senior Notes | Subsequent Event
Subsequent Event [Line Items]
Initial conversion price, per share | $ / shares		$ 52.83
Common stock based on initial conversion rate ratio (in shares)		18.9287
Strike price of the call transaction (in dollars per share) | $ / shares		$ 52.83
Strike price of warrant transactions (in dollars per share) | $ / shares		$ 64.43
July 2014 Amendment | Revolving Credit Facility
Subsequent Event [Line Items]
Proceeds from lines of credit			$ 272,000,000
July 2014 Amendment | Revolving Credit Facility | Subsequent Event
Subsequent Event [Line Items]
Proceeds from lines of credit	310,000,000
Indemnification period - Up to 15 months after close | TEI Biosciences Inc and TEI Medical Inc. | Subsequent Event
Subsequent Event [Line Items]
Maximum indemnification from acquisition	$ 30,000,000.0
Period of indemnification	15 months
Indemnification period - Up to 3 years after close | TEI Biosciences Inc and TEI Medical Inc. | Subsequent Event
Subsequent Event [Line Items]
Maximum indemnification from acquisition	$ 30,000,000.0
Period of indemnification	3 years
Minimum indemnification from acquisition	$ 20,000,000.0